The appellate court said arguments would be heard the week of July 28.

A federal jury in 2006 convicted Siegelman and former HealthSouth CEO Richard Scrushy on bribery and other charges. Prosecutors said Scrushy bribed Siegelman for a spot on a state regulatory board with donations to Siegelman's 1999 lottery campaign.

Siegelman says the case was tainted by the involvement of a prosecutor with ties to GOP politics. His lawyers also argue that the trial judge made multiple errors in calculating Siegelman's sentence.

The former Democratic governor is incarcerated in Louisiana and has an estimated release date of summer 2017.